QT5.9 serialport串口通信模块，编写一个上位机程序，串口调试助手，附源码

#include "serialport.h" #include "ui_serialport.h" #include<QSerialPortInfo> #include<QDebug> #include<QButtonGroup> #include<QTextCodec> #include<QMessageBox> void SerialPort::serialport_init() { foreach(const QSerialPortInfo info,QSerialPortInfo::availablePorts())//可以不使用 { ui->comboBox_port->addItem(info.portName()); } } void SerialPort::show_portStateLabel() { QString info=QString("RX^%0 TX^%1 Bytes").arg(rxCount).arg(txCount); portStateLabel->setText(info); } SerialPort::SerialPort(QWidget *parent) : QMainWindow(parent), ui(new Ui::SerialPort) { ui->setupUi(this); portStateLabel=new QLabel("RX ---- TX ----"); portStateLabel->setContentsMargins(20,0,20,0); portStateLabel->setMaximumWidth(1000); ui->statusBar->addWidget(portStateLabel); QButtonGroup *btnGroupRev=new QButtonGroup(this); btnGroupRev->addButton(ui->radio_accept_ascii,0); btnGroupRev->addButton(ui->radio_accept_hex,1); ui->radio_accept_hex->setChecked(true); QButtonGroup *btnGroupSend=new QButtonGroup(this); btnGroupSend->addButton(ui->radio_send_ascii,0); btnGroupSend->addButton(ui->radio_send_hex,1); ui->radio_send_hex->setChecked(true); timer=new QTimer(this); timer->stop(); timer->setInterval(ui->spinBox_timer->value()); connect(timer,&QTimer::timeout, this,[=](){ if(serial->isOpen()) on_btnSendData_clicked();}); serial=new QSerialPort(this); serialport_init(); connect(serial,SIGNAL(readyRead()),this,SLOT(slot_read_from_port())); } SerialPort::~SerialPort() { delete ui; } void SerialPort::closeEvent(QCloseEvent *event) { if(serial->isOpen()){ int result; result=QMessageBox::question(this,"提示","端口已打开，确认退出？", QMessageBox::Yes|QMessageBox::No); if(result==QMessageBox::Yes) { serial->close(); event->accept(); }else{ event->ignore(); } } } void SerialPort::on_btnReloadPort_clicked() { ui->comboBox_port->clear(); serialport_init(); } void SerialPort::on_btnOpenPort_clicked() { serial->setPortName(ui->comboBox_port->currentText()); if (serial->open(QIODevice::ReadWrite)) { qint32 baudrate=ui->comboBox_baud->currentText().toInt(); serial->setBaudRate(baudrate); switch(ui->comboBox_databit->currentText().toInt()) { case 8: serial->setDataBits(QSerialPort::Data8); break; case 7: serial->setDataBits(QSerialPort::Data7); break; case 6: serial->setDataBits(QSerialPort::Data6); break; case 5: serial->setDataBits(QSerialPort::Data5); break; default : qDebug()<<"default"<<"databit"; break; } switch (ui->comboBox_checkbit->currentIndex()) { case 0: serial->setParity(QSerialPort::NoParity); break; case 1: //odd serial->setParity(QSerialPort::OddParity); break; case 2: //even serial->setParity(QSerialPort::EvenParity); break; case 3: serial->setParity(QSerialPort::SpaceParity);break; case 4: serial->setParity(QSerialPort::MarkParity); break; default: qDebug()<<"default"<<"checkbit"; break; } switch(ui->comboBox_stopbit->currentText().toInt()) { case 1: serial->setStopBits(QSerialPort::OneStop); break; case 2: serial->setStopBits(QSerialPort::TwoStop); break; default: qDebug()<<"default"<<"stopbit"; break; } switch(ui->comboBox_flow->currentIndex()) { case 0: serial->setFlowControl(QSerialPort::NoFlowControl);break; case 1: serial->setFlowControl(QSerialPort::HardwareControl);break; case 2: serial->setFlowControl(QSerialPort::SoftwareControl);break; default: qDebug()<<"default"<<"flow"; break; } ui->btnOpenPort->setEnabled(false); ui->btnClosePort->setEnabled(true); ui->label_com_baud->setText(QString(" %0 %1"). arg(ui->comboBox_port->currentText()). arg(ui->comboBox_baud->currentText())); } else { ui->label_com_baud->setText(QString("Open Failed"). arg(ui->comboBox_port->currentText())); } } void SerialPort::on_btnClosePort_clicked() { serial->close(); ui->btnOpenPort->setEnabled(true); ui->btnClosePort->setEnabled(false); ui->label_com_baud->setText(" **********"); } void SerialPort::on_btnResetInfo_clicked() { ui->lcdRevNum->display(0); ui->lcdSendNum->display(0); } void SerialPort::on_chk_auto_send_clicked(bool checked) { if(checked){ timer->setInterval(ui->spinBox_timer->value()); timer->start(); ui->spinBox_timer->setReadOnly(true); } else{ timer->stop(); ui->spinBox_timer->setReadOnly(false); } } void SerialPort::slot_read_from_port() { ui->lcdRevNum->display(ui->lcdRevNum->value()+1); if(ui->chk_showNo->isChecked()){ ui->plainTextEdit_rev->insertPlainText(QString("[%0]^") .arg(ui->lcdRevNum->value())); } QByteArray byteArray = serial->readAll(); rxCount+=byteArray.length(); show_portStateLabel(); QTextCursor cursor = ui->plainTextEdit_rev->textCursor(); cursor.movePosition(QTextCursor::End); ui->plainTextEdit_rev->setTextCursor(cursor); if(ui->radio_accept_ascii->isChecked()) { ui->plainTextEdit_rev->insertPlainText(QString::fromLocal8Bit(byteArray)); } else if( ui->radio_accept_hex->isChecked()) { QDataStream out(&byteArray,QIODevice::ReadWrite); while(!out.atEnd()) { qint8 outChar = 0; out>>outChar; QString str = QString("%1").arg(outChar&0xFF,2,16,QLatin1Char('0')); ui->plainTextEdit_rev->insertPlainText(str+" "); } //ui->plainTextEdit_rev->appendPlainText(byteArray.toHex()+" "); } if(ui->chk_auto_line->isChecked()) { ui->plainTextEdit_rev->insertPlainText("\n"); } } void SerialPort::on_btnSendData_clicked() { ui->lcdSendNum->display(ui->lcdSendNum->value()+1); QString sendstr=ui->plainTextEdit_send->toPlainText(); if(ui->radio_send_ascii->isChecked()) { //Unicode转GBK 参考博客问答http://bbs.csdn.net/topics/390024555 // QTextCodec *codec = QTextCodec::codecForName("GBK"); //建立一个unicode与GBK之间的转换器 // QByteArray bytes = codec->fromUnicode(sendstr); //unicode转换成gbk QByteArray bytes=sendstr.toLocal8Bit();//toLatin1 serial->write(bytes); txCount+=bytes.length();show_portStateLabel(); } else if(ui->radio_send_hex->isChecked()) { QByteArray bytes; bytes = QByteArray::fromHex(sendstr.toLatin1());//toLatin1 serial->write(bytes); txCount+=bytes.length(); show_portStateLabel(); qDebug()<<bytes.toHex(); } }